CN207564398U - A kind of lock ring handling instrument for lock-ring-type fast-opening blind - Google Patents

Abstract

The utility model is related to a kind of lock ring handling instruments for lock-ring-type fast-opening blind, including double end screw mandrel and two movable blocks, the screw head of screw convenient for spanner twisting is equipped in the middle part of double end screw mandrel, the part that double end screw mandrel is located at screw head of screw both sides is respectively equipped with wire rod thread, two movable blocks are threadedly coupled by wire rod thread with double end screw mandrel, double end screw mandrel is rotated, two movable blocks are close to each other or are located remotely from each other；One straight pin of each movable block detachable connection replaces head, and straight pin replacement head is vertical with double end screw mandrel, and straight pin, which replaces head lower end, can correspond to insertion blind plate lock ring mounting hole, and blind plate lock ring is in the case where straight pin replaces the drive of head along the axial movement of double end screw mandrel.Advantageous effect：Smoothly fast opening blind lock ring is loaded and unloaded instead of the methods of hand cut, machine cuts, heating power cutting, to blind plate ontology fanout free region, and device design is simple, safe and reliable, execute-in-place only needs 20 minutes, and a kind of new tool of safe and convenient is provided to replace lock ring.

Description

A kind of lock ring handling instrument for lock-ring-type fast-opening blind

Technical field

Kit more particularly to one kind the utility model is related to a kind of lock-ring-type fast-opening blind are opened soon for lock ring type The lock ring handling instrument of blind plate.

Background technology

Lock-ring-type fast-opening blind is that one kind is mounted on filter separator, receiving ball tube and natural gas transmissions station key is waited to set Opening and closing device at standby port, because it occupies little space, accessory is few, easy to operate and open and close the features such as rapid, Gas transmission station along natural gas line is widely used in now, core component is lock ring, and lock ring passes through interior lock pin and interior jam plate It is fixed in the door body shoulder caulking groove of fast opening blind outer ring, shrinks and discharge lock ring using the opener of blind plate to reach keying blind plate Purpose.Cause to become rusty since operating method is improper, hard foreign matter crashes into body shoulder caulking groove, maintaining is not in place in process of production Erosion or lock ring quality itself there are the reasons such as problem, it may appear that lock ring flexibly cannot shrink and discharge, cause fast opening blind without The failure that method normally opens and closes seriously affects the safety in production of natural gas line.The solution of problems is often invited and is set Standby producer replaces lock ring, remove old lock ring cut often using hand cut, machine cuts, heating power (oxygen-acetylene flame cutting and Plasma cut), extension bar brute-force break the methods of curved.

The defects of prior art and deficiency：

1. it is cut by hand when removing old lock ring, machine cuts or operating space is small the methods of extension bar, speed is slow, efficiency It is low, blind plate body shoulder caulking groove is easily damaged, heating power cutting easily causes to aoxidize or become to other positions of blind plate and parts heat affecting Shape may cause secondary injury to equipment.

2. producer is invited to carry out Solve on site failure, and then program is cumbersome, financial cost is high, time-consuming, it is impossible to repair at the first time And the equipment that comes into operation, bury security risk for the normal defeated gas supply in natural gas station.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of lock ring loaders for lock-ring-type fast-opening blind Tool can replace hand cut, machine cuts, heating power cutting or smoothly fast opening blind lock ring is carried out the methods of using extension bar Handling, to blind plate ontology fanout free region, and device design is simple, safe and reliable, execute-in-place take it is about 20 minutes short, for more It changes lock ring and provides a kind of new tool of safe and convenient.

The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of lock ring for lock-ring-type fast-opening blind Handling instrument is equipped with the screw screw convenient for spanner twisting including double end screw mandrel and two movable blocks, in the middle part of the double end screw mandrel Head, the part that the double end screw mandrel is located at the screw head of screw both sides are respectively equipped with wire rod thread, and two movable blocks lead to It crosses the wire rod thread to be threadedly coupled with the double end screw mandrel, rotates the double end screw mandrel, two movable blocks are close to each other Or it is located remotely from each other；Each one straight pin of the movable block detachable connection replaces head, the straight pin replace head with it is described Double end screw mandrel is vertical, and the straight pin, which replaces head lower end, can correspond to insertion blind plate lock ring mounting hole, and the blind plate lock ring is described Straight pin replaces the axial movement of double end screw mandrel described in the drive lower edge of head.

The beneficial effects of the utility model are：(1) the apparatus structure size is compact, and operation is flexible, successfully solves previous It is cut by hand when loading and unloading old lock ring, machine cuts or the problem of operating space is small, speed is slow, efficiency is low the methods of extension bar.

(2) whole process is manually operated during the device use, avoids machine cuts lock ring and easily damages blind plate body shoulder caulking groove, heat Power cutting easily leads to problems such as to aoxidize or deform to other positions of blind plate and parts heat affecting.

(3) movable block is connected using screw thread with screw, can preferably be positioned lock ring both ends mounting hole, be made operating process more It is convenient and efficient, positioning it is more accurate, so as to assure success replace handling lock ring.

(4) it is met the requirements when device is processed using high quality steel, the parameters such as tensile strength, yield strength, it will not Fracture is so as to damaging operating personnel in draw ring section is supportted, the entire safe devoid of risk of operation process.

(5) lock ring is loaded and unloaded using the device, natural gas station employee is relied on to can be operated, does not need to specially invite people from producer Member's in-situ processing, has saved human and material resources, the economic benefits comparison of generation is considerable.

Based on the above technical solution, the utility model can also do following improvement.

Further, the wire rod thread of the screw head of screw both sides is oppositely oriented, be equipped in each movable block and The threaded hole that the corresponding wire rod thread matches.

Advantageous effect using above-mentioned further scheme is can to realize the rotation double end screw mandrel, two movements Block is close to each other or is located remotely from each other, and this realization method is simple and reliable, screw thread can self-locking, circular motion conversion is in line fortune Dynamic, only need to provide smaller torque can transmit larger horizontal thrust.

Further, the straight pin replaces the blind plate lock ring mounting hole that head is equipped with multiple and corresponding sizes, the circle Pin replaces head upper end and is equipped with straight pin replacement head thread and is threadedly coupled with the movable block.

Advantageous effect using above-mentioned further scheme is that straight pin replaces head and is suitable for a variety of situations, circle equipped with multiple Pin is replaced head and is threadedly coupled with the movable block, easy disassembly.

Further, the straight pin replaces centriciput and is equipped with straight pin head of screw, is twisted convenient for spanner.

Advantageous effect using above-mentioned further scheme is twisted convenient for spanner, and head is replaced convenient for tightening straight pin.

Further, the surface of the straight pin replacement head is coated with nitrile rubber protecting film to prevent from damaging during support is drawn Hinder fast opening blind lock ring.

Advantageous effect using above-mentioned further scheme is to prevent the damage fast opening blind lock ring during support is drawn.

Description of the drawings

Fig. 1 is a kind of structural representation of lock ring handling instrument for lock-ring-type fast-opening blind provided by the utility model Figure.

In attached drawing, parts list represented by the reference numerals are as follows：

1st, double end screw mandrel, 2, screw head of screw, 3, wire rod thread, 4, movable block, 5, straight pin head of screw, 6, straight pin replaces Change head, 7, straight pin replace head thread.

Specific embodiment

The principle and feature of the utility model are described below in conjunction with attached drawing, example is served only for explaining this practicality It is novel, it is not intended to limit the scope of the utility model.

As shown in Figure 1, a kind of lock ring handling instrument for lock-ring-type fast-opening blind, is moved including double end screw mandrel 1 and two Motion block 4,1 middle part of double end screw mandrel are equipped with the screw head of screw 2 convenient for spanner twisting, and the double end screw mandrel 1 is located at the silk The part of 2 both sides of bar head of screw is respectively equipped with wire rod thread 3, and two movable blocks 4 pass through the wire rod thread 3 and described pair Captacula bar 1 is threadedly coupled, and rotates the double end screw mandrel 1, two movable blocks 4 are close to each other or are located remotely from each other；It is each described 4 detachable connection of movable block, one straight pin replaces head 6, and the straight pin replacement head 6 is vertical with the double end screw mandrel 1, institute Insertion blind plate lock ring mounting hole can be corresponded to by stating 6 lower end of straight pin replacement head, and the blind plate lock ring replaces head 6 in the straight pin Drive the axial movement of double end screw mandrel 1 described in lower edge.

The wire rod thread 3 of 2 both sides of screw head of screw is oppositely oriented, be equipped in each movable block 4 and and its The threaded hole that the corresponding wire rod thread 3 matches.

The straight pin replaces the blind plate lock ring mounting hole that head 6 is equipped with multiple and corresponding sizes, and the straight pin replaces First 6 upper end is changed to replace head thread 7 equipped with straight pin and be threadedly coupled with the movable block 4.

The straight pin replaces 6 middle part of head and is equipped with straight pin head of screw 5, is twisted convenient for spanner.

The surface that the straight pin replaces head 6 is coated with nitrile rubber protecting film to prevent the damage during support is drawn from opening soon Blind plate lock ring.

Application method：

The first step opens fast opening blind

Operating personnel's labour protection dressing, pass hull closure upstream and downstream valve, emptying device inner cavity natural gas, equipment pressure gauge are shown After being zero, safety pin is backed out, removes blind plate insert, starts tumbler, opens fast opening blind.

Second step installs Suitable cylindrical pin

The straight pin that bore dia selection suitable dimension is fixed according to blind plate lock ring replaces head 6, and straight pin is utilized to replace head spiral shell Are replaced head 6 by straight pin for line 7 and movable block 4 links together, and is stuck at straight pin head of screw 5 with monkey wrench or fork spanner, It fastens straight pin and replaces head 6 and movable block 4.

Third walks device firm position

Dirt in the mounting hole of blind plate lock ring both ends is cleared up, rotating female screw movable block adjusts suitable position, until by cylinder Pin replaces head 6 and injects in mounting hole and dock secured.

4th step rotating device leading screw

Monkey wrench or suitable fork spanner are stuck at screw head of screw 2, spanner is slowly rotated clockwise and drives bipitch silk Bar 1 rotates, and engages movable block 4 by screw thread and is moved to 1 both ends of double end screw mandrel, blind plate lock ring replaces the support of head 6 in straight pin Under expand outwardly.

5th step unloads blind plate lock ring

Continue to rotate clockwise double end screw mandrel 1, blind plate lock ring is because constantly expanding and being slowly detached from blind plate body under tension force effect Lock ring from blind plate is successfully removed, unscrews double end screw mandrel 1 counterclockwise, device is detached from lock ring by shoulder caulking groove.

6th step clears up lock ring caulking groove

Dirt in blind plate body shoulder caulking groove is conscientiously cleared up, appropriate butter is smeared along new lock ring periphery, it is ensured that new lock ring and body shoulder Caulking groove lubricates, while prevents the two contact surface from corrosion occurs.

7th step device firm position

With reference to second and third step, device is fixed on the mounting hole at new lock ring both ends, equally slowly rotates clockwise spanner Double end screw mandrel 1 is driven to rotate, movable block 4 is engaged by screw thread and is moved to 1 both ends of double end screw mandrel, new blind plate lock ring is replaced in straight pin It changes under first 6 support and expands outwardly, lock ring stops rotating double end screw mandrel 1 when being expanded to suitable size.

8th step is installed in place new lock ring

The new lock ring expanded in place is placed into blind plate body shoulder caulking groove, double end screw mandrel 1 is rotated counterclockwise, makes lock ring slowly Close to caulking groove, until the two is bonded, lock ring is installed in place, and is continued rotation counterclockwise and is removed device.

The replacement operation of a fast opening blind lock ring is completed by above eight steps.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (5)

1. a kind of lock ring handling instrument for lock-ring-type fast-opening blind, which is characterized in that moved including double end screw mandrel (1) and two Motion block (4), double end screw mandrel (1) middle part are equipped with the screw head of screw (2) convenient for spanner twisting, double end screw mandrel (1) position Wire rod thread (3) is respectively equipped in the part of screw head of screw (2) both sides, two movable blocks (4) pass through the silk Bar screw thread (3) is threadedly coupled with the double end screw mandrel (1), rotates the double end screw mandrel (1), and two movable blocks (4) are mutual It is close or be located remotely from each other；Each described one straight pin of movable block (4) detachable connection replaces head (6), and the straight pin replaces It is vertical with the double end screw mandrel (1) to change head (6), the straight pin, which replaces head (6) lower end, can correspond to insertion blind plate lock ring mounting hole, The blind plate lock ring replaces the axial movement of double end screw mandrel (1) described in the drive lower edge of head (6) in straight pin.

A kind of 2. lock ring handling instrument for lock-ring-type fast-opening blind according to claim 1, which is characterized in that the silk The wire rod thread (3) of bar head of screw (2) both sides is oppositely oriented, is equipped with and corresponding institute in each movable block (4) State the threaded hole that wire rod thread (3) matches.

A kind of 3. lock ring handling instrument for lock-ring-type fast-opening blind according to claim 1, which is characterized in that the circle Pin replaces blind plate lock ring mounting hole of the head (6) equipped with multiple and corresponding sizes, and the straight pin is replaced head (6) upper end and set There is straight pin to replace head thread (7) and be threadedly coupled with the movable block (4).

A kind of 4. lock ring handling instrument for lock-ring-type fast-opening blind according to claim 3, which is characterized in that the circle Pin, which is replaced, is equipped with straight pin head of screw (5) in the middle part of head (6).

5. according to a kind of any one of claim 1-4 lock ring handling instruments for lock-ring-type fast-opening blind, feature exists In the surface that the straight pin replaces head (6) is coated with nitrile rubber protecting film.